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CVE-2025-39973— i40e: add validation for ring_len param

EPSS 0.06% · P18
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I. Basic Information for CVE-2025-39973

Vulnerability Information
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Vulnerability Title
i40e: add validation for ring_len param
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: i40e: add validation for ring_len param The `ring_len` parameter provided by the virtual function (VF) is assigned directly to the hardware memory context (HMC) without any validation. To address this, introduce an upper boundary check for both Tx and Rx queue lengths. The maximum number of descriptors supported by the hardware is 8k-32. Additionally, enforce alignment constraints: Tx rings must be a multiple of 8, and Rx rings must be a multiple of 32.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未验证ring_len参数，可能导致硬件内存上下文错误。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd ~ 0543d40d6513cdf1c7882811086e59a6455dfe97 -
LinuxLinux 3.12 -

II. Public POCs for CVE-2025-39973

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III. Intelligence Information for CVE-2025-39973

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Same Patch Batch · Linux · 2025-10-15 · 34 CVEs total

CVE-2025-39974tracing/osnoise: Fix slab-out-of-bounds in _parse_integer_limit()
CVE-2025-39982Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync
CVE-2025-39981Bluetooth: MGMT: Fix possible UAFs
CVE-2025-39979net/mlx5: fs, fix UAF in flow counter release
CVE-2025-39980nexthop: Forbid FDB status change while nexthop is in a group
CVE-2025-39978octeontx2-pf: Fix potential use after free in otx2_tc_add_flow()
CVE-2025-39977futex: Prevent use-after-free during requeue-PI
CVE-2025-39976futex: Use correct exit on failure from futex_hash_allocate_default()
CVE-2025-39975smb: client: fix wrong index reference in smb2_compound_op()
CVE-2025-39984net: tun: Update napi->skb after XDP process
CVE-2025-39972i40e: fix idx validation in i40e_validate_queue_map
CVE-2025-39970i40e: fix input validation logic for action_meta
CVE-2025-39971i40e: fix idx validation in config queues msg
CVE-2025-39969i40e: fix validation of VF state in get resources
CVE-2025-39968i40e: add max boundary check for VF filters
CVE-2025-39967fbcon: fix integer overflow in fbcon_do_set_font
CVE-2025-39966iommufd: Fix race during abort for file descriptors
CVE-2025-40000wifi: rtw89: fix use-after-free in rtw89_core_tx_kick_off_and_wait()
CVE-2025-39983Bluetooth: hci_event: Fix UAF in hci_conn_tx_dequeue
CVE-2025-39985can: mcba_usb: populate ndo_change_mtu() to prevent buffer overflow

Showing top 20 of 34 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-39973

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